问下GWD-27-Q10黑洞那个~~后来自己明白了~~Q10: The skeptics mentioned in the first paragraph would be most likely to agree with the astronomers mentioned in line 13 about which of the following statements concerning the galaxy M87? - The speed of the gas whirling around the center of M87 is caused by a dense object that is not a black hole.
- The concentration of mass at the center of M87 is probably a large cluster of dim stars.
- The presence of a black hole at the center of M87 is the most likely explanation for the speed of the gas whirling about the galaxy’s core.
- The speed of the gas whirling around the center of M87 is caused by a large concentration of mass at the core of M87.
- The gravitational influence of a star cluster would not be strong enough to account for the speed of the gas whirling around the core of M87.
我选的是C,答案是D,如果按照D的思路,那么就是核心是讨论concentration mass是由什么形成的,所以核心词是mass 恩恩,应该是D,审题不仔细,因为问的是skeptics的观点
[此贴子已经被作者于2008-7-13 15:49:05编辑过] |